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Introduction
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ddFileLock()     Semaphore on a dbDD file
ddSemIsLock()    Verifies the SEMAPHORE on the record of DBDD that is at EOF
ddSemLock()      Activates the SEMAPHORE in the DBDD record with EOF
ddSemUnLock()    Disarms the SEMAPHORE on the EOF record of the DBDD
dfConNum()       Return the connection number of a NOVELL SERVER
dfFileIsLock()   Verification of a active lock on a file
dfFileLock()     Locks the given file
dfFileUnLock()   Unlocks all files in an array
dfIsIPX()        Tests if an IPX is installed
dfIsShare()      Verifies if SHARE is installed
dfLogOut()       Call a LOGOUT on a NOVELL SERVER
dfNet()          Performs an operation on the network
dfStaHdr()       Return the HW connection number of a NOVELL SERVER